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(11)

EP 4 185 422 A1

(12)

(43) Date of publication: 31.05.2023 Bulletin 2023/22 (21) Application number: 21755276.9 (22) Date of filing: 23.07.2021

(51) International Patent Classification (IPC):  B22D 11/049(2006.01) B22D 11/16(2006.01) B22D 11/20(2006.01) B22D 11/08(2006.01) B22D 11/18(2006.01) (52) Cooperative Patent Classification (CPC): B22D 11/049; B22D 11/08; B22D 11/16; B22D 11/18; B22D 11/20 (86) International application number: PCT/US2021/042975 (87) International publication number: WO 2022/020721 (27.01.2022 Gazette 2022/04)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 23.07.2020 US 202062705949 P (71) Applicant: Novelis, Inc. Atlanta, GA 30326 (US)	(72) Inventors: MCCALLUM, John Robert Buster Kennesaw, Georgia 30144 (US) SINDEN, Aaron David Kennesaw, Georgia 30144 (US) (74) Representative: Feller, Frank  Weickmann & Weickmann Patent- und Rechtsanwälte PartmbB Postfach 860 820 81635 München 81635 München (DE)